Collapsible container



FIG. 1 is a perspective view of the collapsible container showing my new design;

FIG. 2 is a front view, the back view being a mirror image thereof; and,

FIG. 3 is a left side view, the right side view being a mirror image thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a collapsible container, as shown and described. 